package xin.config.db;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

import java.text.SimpleDateFormat;

/**
 * <pre>
 * Redis 缓存配置
 * </pre>
 *
 * @author lixin_ma@outlook.com
 * @version 1.0
 * @since 2018/8/7 22:59
 */
//@Configuration
//@EnableCaching
public class RedisConfiguration extends CachingConfigurerSupport {

    /**
     * 自定义key
     * 此方法将会根据类名+方法名+所有参数的值生成唯一的一个key,即使@Cacheable中的value属性一样，key也会不一样。
     * @return
     */
//    @Bean("wiselyKeyGenerator")
    public KeyGenerator wiselyKeyGenerator() {
        return (target, method, params) -> {
            StringBuilder sb = new StringBuilder();
            sb.append(target.getClass().getName());
            sb.append(method.getName());
            for (Object obj : params) {
                sb.append(obj.toString());
            }
            return sb.toString();
        };

    }

    /**
     * 缓存管理器.
     *
     * @param redisTemplate Redis 序列化模版
     * @return
     */
//    @Bean
    public CacheManager cacheManager(@SuppressWarnings("rawtypes") RedisTemplate redisTemplate) {
        return new RedisCacheManager(redisTemplate);
    }

//    @Bean
    public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
        StringRedisTemplate template = new StringRedisTemplate(factory);
        @SuppressWarnings({ "rawtypes", "unchecked" })
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        om.setDateFormat(new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"));
        jackson2JsonRedisSerializer.setObjectMapper(om);
        template.setValueSerializer(jackson2JsonRedisSerializer);

        // config 2
//       GenericJackson2JsonRedisSerializer valueSerializer = new GenericJackson2JsonRedisSerializer();
//       template.setValueSerializer(valueSerializer);

        // config 3
//        JdkSerializationRedisSerializer jdkSerializationRedisSerializer = new JdkSerializationRedisSerializer();
//        template.setValueSerializer(jdkSerializationRedisSerializer);
//        template.afterPropertiesSet();
        return template;
    }
}
